international telecommunication union itu seminar on standardization accra, ghana, 27-28 may 2004...

International Telecommunication Union

ITU Seminar on Standardization Accra, Ghana, 27-28 May 2004

ITU activities related to ITU activities related to

IP-based networksIP-based networks

Greg JonesITU Telecommunication Standardization Sector

(ITU-T)

227-28 May 2004

ITU-T IP Related Studies

1. ITU-T IP Project2. ITU-T SG11 Signalling & IP activities3. IP Cable Communications4. IP-QoS/Performance 5. IP-Optical Network & Performance

Aspects6. Numbering7. IP and Security8. Multimedia (MM)

327-28 May 2004

ITU-T’s IP Project

o Covers IP related ITU-T work

o IP Project Description version 8

• see ITU-T Study Group 13 website

• itu.int/ITU-T/studygroups/com13

427-28 May 2004

IP project areas1. Integrated architecture2. Impact to telecommunications access

infrastructures of access to IP applications3. Interworking between IP based network and

switched-circuit networks, including wireless based networks

4. Multimedia applications over IP5. Numbering and addressing6. Transport for IP-structured signals7. Signalling support, IN and routing for services on

IP-based networks8. Performance9. Integrated management of telecom and IP-based

networks10. Security aspects11. Network capabilities including requirements for

resource management12. Operations and Maintenance (OAM) for IP13. Utilization of IPv6 in telecommunication networks

527-28 May 2004

Scope of the IP Project

Management - SG 4, 6/ SSG, 14/ 15, 3/ 16

Naming, Numbering, Addressing and Routing - SG 2

Overall Network Architecture and Framework - Qs 1, 11, 14 and16/ 13

IP andnon-IP

Access -Qs 12/ 13,

14/ 13,SGs 4, 15 and 16

IP andnon-IP

Access -Qs 12/ 13,

14/ 13,SGs 4, 15and 16

IP Transport –Qs10/ 13, 16/ 13, SG 15

IP Performance - Q 6/ 13, SGs 2, 4 and 12

Interworking –Q5/ 13, SG16 and SSG

Network Capabilities Qs 1, 2, and 3/ 13, SG 9

Signalling Support - SG 11

IP ApplicationsIncluding Multi media - Q 3/ 13 and SG 10 and SG16

Service InterworkingQs 2/ 13, 5/ 13

3

1

5

9

6

8

3

11

72

2

4

= Work area

7

12 10Operational Issues - SGs 2, 3, 4 and 17

13

627-28 May 2004

SG13 IP Work

o Y.1231 - IP Access Network Architecture

o Y.1310 - Transport of IP over ATM in public networks

o Y.1401 - General requirements for interworking with IP-based Networks

o Y.1241 - Support of IP-based services using IP transfer capabilities

27-28 May 2004

SG13 IP work

o Y.1710 - Requirements for OAM functionality for MPLS networks

o Y.1540 - IP packet transfer and availability performance parameters

o Y.1541 - IP performance objectives and allocations

o Y.1311 - IP VPN o Y.1311.1 - IP VPN over MPLS

o Y.satIP - Satellite IP networking (arch, mcst, QoS)

o Y.123.qos - IP access quality of service

o Y.ipbypass - IP bypass in access networks

27-28 May 2004

SG13 Future

o Study groups continue to build links with the IETF

o Develop and manage the IP Project

o Work programmesee itu.int/ITU-T/dbase

927-28 May 2004

(2) ITU-T Study Group 11Signalling & IP activitieso Defines Signalling requirements and

protocols for:• enhancements to existing

Recommendations on access (UNI) and (inter)-network (NNI) signalling protocols for PSTN, ISDN and Packet (ATM and IP)-based networks

• Some Mobility & MM related functions• the support of voice, data and Multi-media

communications and services• emerging NGN architectures,

signalling requirements, and control Protocols including Internet Protocol (IP) related control functions

o Lead Study Group for IN

1027-28 May 2004

ITU-T SG11 work focus

o Interactions between IN and IP-based networks

o IP-related signalling protocolso Bearer (ATM, IP) Independent Call

Control (i.e. BICC)o Signalling transport over IP

1127-28 May 2004

SS7 Convergence towards Packet based Networks

o Intelligent Network architecture and protocols enhance

o For Call control signalling, Bearer Independent Call Control (BICC) protocols - over Packet based transport networks • BICC Recs approved (2000 &

2001).• BICC CS3 under development

1227-28 May 2004

(3) IP Cable Communications

IPCablecom (SG9)o Defines architecture and interface

specs interactive services over

cable television network using IP

o Market driver: IP telephony

1327-28 May 2004

IPCablecom Service Possibilities

o Residential/ Business IP Telephonyo Video IP telephonyo Voice/data/video unified messagingo Enhanced conferencing and media

serviceso Entertainment Services

• Real-time multiplayer interactive gaming

1427-28 May 2004

AN Access NodeCM Cable ModemCMS Call Management ServersHFC Hybrid Fiber Coax networkMTA Multimedia Terminal AdapterPSTN Public Switched Tel. Network

Embedded MTA

IPCablecom Components

PSTN

PSTNGateway

CMS

CMMTA

Back OfficeServers

Managed IPNetwork

AN

CM

HFC

1527-28 May 2004

IPCablecom Recs. for interoperability intra-zone

and with PSTN

ArchitectureJ.160 Architecture

SignallingJ.162 Network Call SignallingJ.165 IPCablecom Signalling Transport ProtocolJ.171 Trunk Gateway Control Protocol

Quality of ServiceJ.163 Dynamic QoS

Media/CodecsJ.161 Audio Codec

Requirements.OSS

J.164 Event Messaging

J.166 MIB Framework

J.167 MTA Provisioning

J.168 MTA MIBJ.169 NCS MIB

SecurityJ.170 (02/02)

Security

A set of recommendations in 2001/2002

1627-28 May 2004

IPCablecom Recs. for interoperability inter-zone and inter-domain directly

over managed IP backbones

Quality of ServiceJ.174 Inter-domain

QoS

SecurityJ.170 Security

ArchitectureFor further study

SignallingFor further study

OSSJ.164 Event

Messaging

1727-28 May 2004

(4) IP-QoS/Performance

o QoS Classes• Basis for IP Network QoS Control

o IP QoS control• IP/PSTN network convergence

o Y.1541• Network performance objectives for IP-

based serviceso Y.1540=I.380

• Internet protocol data communication service - IP packet transfer and availability performance parameters

o QoS signalling protocols Y.1541

1827-28 May 2004

Max Packet Loss, Max Mean Delay, Max Delay Variation TRANSPORT

APPLICATIONCodec Performance, VAD, Frames per Packet, Jitter Buffer Size, Codec Delay, FEC (Redundancy)

QoS Parameters

ITU-T SG16/11

ITU-T SG13/IETF

SERVICEUser Perceived QoS

ITU-T SG12/16

1927-28 May 2004

Some Discussion topics on IP Network QoS Control

o Harmonized IP QoS signallingo Interworking IP QoS mechanisms

2027-28 May 2004

(5) IP-Optical Network & Performance Aspects

o IP-Optical Networks: Motivation

• Infrastructure Attributes

• Capabilities

• Operational Benefits

2127-28 May 2004

IP/Optical - Performance Benefits & Challenges

o Performance Benefits• Increased transmission capacity• Reduced packet transfer delay, delay

variation, loss, error• Lower call set up delays and blocking

probabilities• Improved service availability

o Some Challenges• Specify interoperable performance

signalling protocols• Relate IP user/client requirements with

control mechanisms• Define compatible network

management strategies

2227-28 May 2004

IPPM and Question 6/13

o New RFCs • Loss Patterns• Bulk Transfer

Capacityo Current (IETF)

Drafts • Packet

Reordering• Active Meas.

Protocol Req.• IPPM MIB

o New Work• Link Bandwidth

Capacity

o Performance Objectives• Y.1541 (May

2002), six QoS Classes

o Suggest QoS Signaling Support/Methods

o Parameter Revisions• Y.1540 (Nov

2002)o “other” Packet

Transfer • MPLS?

2327-28 May 2004

(6) Numbering

o ENUM Significance: - Mapping telephone numbers onto Internet.- Could allow conventional telephones to call IP terminals (PCs).- ITU Responsibility: Define and implement administrative procedures that coordinate delegations of E.164 numbering resources into the agreed DNS name servers- Draft Recommendation E.A-ENUM is being

prepared by Study Group 2

2427-28 May 2004

(7)IP and Security

Directory Access Control with X.509 Attribute Certificates:

o The user given Attribute Certificate (AC) which strongly binds his/her name to the privileges being given to him/her

o The AC is signed by the Attribute Authority (Resource Owner or his delegate)

o Similar to X.509v3 certificate, only holds a sequence of attributes rather than a public key

o An attribute certificate can be stored anywhere since it is secure and self contained

2527-28 May 2004

Standardisation Work ofQ. 9/17

o Friends attributes in X.501, X.511o Distributed page results service in

X.518o Related Entries in X.501, X.511,

X.518o Alignment with IETF standardso Defect reports for entire X.500-series

2627-28 May 2004

ITU-T Special Study Group IMT-2000 and Beyond

o Q.3/SSG Identification of existing and evolving IMT-2000 Systems• Q.1741 3GPP security specifications

o Q.1/SSG Service and network capability requirements and network architecture

o & Q.7/SSG Convergence of fixed and existing IMT-2000 systems

2727-28 May 2004

Study Group 16Security-related Questions in the

MediaCom2004 project

Q.C/16 - MM Applications & Services F.706

Q.D/16 - Interoperability of MM Systems & Services

Q.G/16 - Security of MM Systems & Services H.233, H.234, H.235

Q.1/16

MM Systems, Terminals &

Data Conferencing

H.320

H.324

T.120

Q.2/16

MM over Packet

Networks using H.323

systems

H.225.0

H.323

H.450

H.460

Q.3/16

Infrastructure &

Interoperability for MM over

Packet Network Systems

H.245

H.246

H.248

Q.4/16

Video and Data

conferencing using

Internet supported Services

Q.5/16Mobility for MM

Systems &

Services

H.501

H.510

H.530

Q.F/16 - MM Quality of Service & E-2-E Performance in MM Systems

2827-28 May 2004

Q.G/16 Work and Study Items Highlights

o Investigate confidentiality and privacy of all signaling

o Address centralized key management for MM systems

o Security for MM Mobilityo Optimize voice encryption, develop video

encryptiono MM security support for emergency

serviceso Consolidate or develop new security

profileso Security interworking H.323-SIP

2927-28 May 2004

Emergency Telecommunication Services (ETS) Security for MM

Applications and Systems

o Security objectives:• prevent theft of service and denial of

service by unauthorized user• support access control and

authorization of ETS users• confidentiality and integrity of calls• provide rapid and user-friendly

authentication of ETS users

o H.SETS : provisional title for a new work item under study in Q.G/16 - focus on the multimedia security aspects of ETS

3027-28 May 2004

(8)Multimedia (MM)

ITU-T Study Group 16 MediaCom 2004 objective

o to create a framework for the harmonized and coordinated development of multimedia communication standardization for use across all ITU-T and ITU-R Study Groups, and in close cooperation with other regional and international SDOs and industry forums

3127-28 May 2004

MEDIACOM 2004 Framework in SG16

MEDIACOM 2004 (Q A/16)

Generic Questions B/16 to H/16

Framework Standardisation Areas (FSA)

Equipment and system questions

1/16 to 15/16

FSA Framework Study AreasFSA Framework Study Areas

3227-28 May 2004

o Project MediaCom 2004 (A/16)o MM Architecture (B/16)o MM Applications and Services (C/16)o Interoperability of MM Systems and

Services (D/16)o Media Coding (E/16) o QoS & E-E performance in MM

Systems (F/16) o Security of MM Systems and

Services (G/16)

o Accessibility (H/16)

Framework Study Areas (FSA)

3327-28 May 2004

F.MDS

Service D

escriptionsTechnical D

escriptions

T.130

H.263

H.262H.261

H.243

H.231

H.320

H.242

H.230

H.221

Q.931

ISDN

ISDN

F.MCS.1 = F.731

F.MCV.1

F.MRS.1

F.MDS.1

N. A.

H.324

H.245

H.223

Q.23

PSTN

PSTN

F.MCS.3

F.MCV.3

F.MRS.3

F.MDS.3

N. A.

H.324

H.245

H.223

F.MCS.4

F.MCV.4

F.MRS.4

F.MDS.4

Q.---

Mobiles

Mobiles

Terminals or End-points

Multipoint

In-band Signalling

Multiplex

Call Control

B-ISDN

B-ISDN

H.247

H.321

H.310

H.245

H.222.1

H.222.0

Q.2931

F.MCS.2 = F.732

F.MCV.2

F.MRS.2

F.MDS.2

Network Independent Recommendations Network Specific Recommendations

Video CodingAudio CodingProtocols

G.729

G.728G.723

G.722

Communication Capabilities :

F.700Service Description Process

F.MRS

F.MCVS

F.MCS = F.702

Generic Multimedia Services

H.332

H.323

H.245

H.225.0

Packets

Packets

F.MCS.5

F.MCV.5

F.MRS.5

F.MDS.5

G.711

Media Comp.

Comm. Tasks

MSEs

MSEs = middleware service elements

T.120

H.248

MM Element Interdependence

Use

r pe

rspe

ctiv

eE

quip

men

t/pr

otoc

ol p

ersp

ecti

ve

3427-28 May 2004

Other IP related resources

o IP Policy Manualsee itu.int/ITU-T/special-projects/ip-policy

o PP-02 Resolution 102o ITU-T Workshops

see itu.int/ITU-T/worksem

o ITU-T and ICANN reformsee itu.int/ITU-T/tsb-director/itut-icann